Juncal, Portugal experiences average highs of 20°C (68°F) and lows of 12°C (54°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Juncal, Portugal Weather & Climate 2026
Monthly climate averages for Juncal, Portugal. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Sep 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.8/10
Best: June, July, August, September
UV Index
5
Low
Temperature 20°C / 12°C
Feels Like 19°C / 11°C
Rainy Days 8
Rainfall 57 mm
Sunshine 10 h
Humidity 78%
Wind Speed 22 km/h
Dew Point 12°C
Hottest Month
27°C
August
Avg Low17°C
Rain1days
Coldest Month
8°C
January
Avg High14°C
Rain9days
Driest Month
1days
August
Avg High27°C
Avg Low17°C
Windiest Month
23 km/h
March (Gusts 44)
Sea Temperature
15°C – 19°C
Warmest water: July (
19.1°C
)
Worst Time to Visit
Consider avoiding January, February, December due to less favorable weather conditions.
Sun Position
Sunrise 06:09
Daylight 15h
Sunset 21:06
Live conditions—
Juncal on the map · live conditions
Juncal, Portugal
- Continent
- Europe
- Country
- Portugal
- City
- Juncal
- Population
- 1.4K
- Coordinates
- 39.60°, -8.90°
Seasonal Breakdown
Spring
Mar–May
Avg High 19°C
Avg Low 11°C
Rain 10 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 16°C
Rain 3 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 21°C
Avg Low 14°C
Rain 9 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 15°C
Avg Low 8°C
Rain 9 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 14°C / 8°C . Feb: 16°C / 8°C . Mar: 16°C / 9°C . Apr: 19°C / 11°C . May: 21°C / 13°C . Jun: 23°C / 15°C . Jul: 26°C / 17°C . Aug: 27°C / 17°C . Sep: 25°C / 16°C . Oct: 22°C / 15°C . Nov: 17°C / 11°C . Dec: 15°C / 9°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 77 mm. Feb: 53 mm. Mar: 96 mm. Apr: 83 mm. May: 46 mm. Jun: 23 mm. Jul: 6 mm. Aug: 3 mm. Sep: 32 mm. Oct: 82 mm. Nov: 96 mm. Dec: 83 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 82%. Feb: 79%. Mar: 78%. Apr: 78%. May: 75%. Jun: 75%. Jul: 73%. Aug: 74%. Sep: 75%. Oct: 79%. Nov: 83%. Dec: 84%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 21 km/h . Mar: 23 km/h . Apr: 22 km/h . May: 22 km/h . Jun: 23 km/h . Jul: 23 km/h . Aug: 23 km/h . Sep: 21 km/h . Oct: 20 km/h . Nov: 21 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 8h. Mar: 10h. Apr: 11h. May: 12h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 9h. Nov: 7h. Dec: 7h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 15°C . Feb: 15°C . Mar: 15°C . Apr: 17°C . May: 17°C . Jun: 19°C . Jul: 19°C . Aug: 19°C . Sep: 18°C . Oct: 19°C . Nov: 17°C . Dec: 16°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall is trending wetter by about 28 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 28°C | Aug · 27°C |
| Coldest month | Feb 2025 · 9°C | Jan · 8°C |
| Wettest month | Nov 2025 · 239 mm | Mar · 96 mm |
| Windiest month | Mar 2025 · 25 km/h | Mar · 23 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair March
Good April
Good May
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 14°C / 8°C | 12°C / 5°C | 9days (77 mm) Wet | 7h Good | 82% Humid | 2.6 Moderate | Fair | View Details |
| February | 16°C / 8°C | 13°C / 6°C | 8days (53 mm) Wet | 8.2h Good | 79% Humid | 3.6 Moderate | Fair | View Details |
| March | 16°C / 9°C | 14°C / 6°C | 12days (96 mm) Wet | 9.5h Good | 78% Humid | 4.9 Moderate | Good | View Details |
| April | 19°C / 11°C | 17°C / 9°C | 11days (83 mm) Wet | 10.8h Excellent | 78% Humid | 6.4 High | Good | View Details |
| May | 21°C / 13°C | 21°C / 12°C | 6days (46 mm) Good | 12.1h Excellent | 75% Muggy | 7.3 Very High | Excellent | View Details |
| June best | 23°C / 15°C | 24°C / 15°C | 6days (23 mm) Good | 12.8h Excellent | 75% Muggy | 7.6 Very High | Excellent | View Details |
| July best | 26°C / 17°C | 27°C / 17°C | 2days (6 mm) Excellent | 13h Excellent | 73% Muggy | 7.9 Very High | Excellent | View Details |
| August best | 27°C / 17°C | 27°C / 17°C | 1days (3 mm) Excellent | 12.2h Excellent | 74% Muggy | 7.4 Very High | Excellent | View Details |
| September best | 25°C / 16°C | 25°C / 16°C | 4days (32 mm) Good | 10.7h Excellent | 75% Muggy | 5.9 High | Excellent | View Details |
| October | 22°C / 15°C | 22°C / 14°C | 10days (82 mm) Wet | 8.7h Good | 79% Humid | 4.3 Moderate | Good | View Details |
| November | 17°C / 11°C | 15°C / 9°C | 12days (96 mm) Wet | 7.3h Good | 83% Humid | 3 Moderate | Good | View Details |
| December | 15°C / 9°C | 13°C / 7°C | 10days (83 mm) Wet | 7h Good | 84% Humid | 2.4 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Juncal are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Juncal, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Juncal is August, with average daytime highs of 27°C (80°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Juncal is January, with average overnight lows of 8°C (46°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Juncal is March, averaging 96mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Juncal runs through March, November, April, October, with the heaviest rainfall in March. Based on 10-year averages for Juncal.
Juncal receives approximately 119 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Juncal.
The least favorable months to visit Juncal are January, February, December, primarily due to less favorable weather conditions. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Juncal is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Juncal is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 17°C (63°F), which most swimmers will find too cold without a wetsuit.
Average wind speeds in Juncal are 22 km/h (14 mph). The windiest month is March with peak winds reaching 23 km/h (15 mph) (gusts up to 44 km/h / 27 mph).
Juncal averages 7 clear-sky days per month with overall cloud cover around 50%. The clearest skies occur in July.
The annual average dew point in Juncal is 12°C (54°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Juncal has a Warm-Summer Mediterranean climate, classified as Csb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Juncal ranges from 11°C (52°F) to 19°C (66°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Juncal. It earns a climate score of 9.5/10 with Excellent.
For June in Juncal, pack Umbrella, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 23°C (74°F) and 6 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
Last updated: